Legoland!

My husband and I are taking my 18 month old son to Legoland this weekend. We've allotted two days for the experience so we can go at a leisurely pace and not stress about crowds. It's really a trip for my husband's benefit, so I just want the trip to go well.

We're bringing the big stroller, one of those backpack leashes (don't judge, he's not a huge fan of the stroller), plenty of snacks and water. He'll be coated in sunblock and bug spray. We'll take extra changes of clothes. I'll take him back to the close-by hotel for naptime (12 - 2 pm). We'll be there with plenty of additional family -- five other folks, in fact.

Any advice you have for me?